Monika U. Zagaja, M.D.
Internal Medicine Physician · Waterford, CT
Monika U. Zagaja, M.D. is an internal medicine physician with a practice address in Waterford, Connecticut, and NPI 1942542337, issued on Mar 23, 2013. Check the license (Connecticut 54700, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Monika U. Zagaja
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 54700 CT
39913 SC
Self-reported in NPPES; status is on the state search - Practice location
- 4 Greentree Dr, Waterford, CT 06385
- Phone
- (860) 442-0647
- Enumerated
- Mar 23, 2013
- Record last updated
- May 6, 2025
- Medicare enrollment
- Enrolled (PECOS I20181115001675); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 4 Greentree Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anna Esposito, RPTPhysical Therapist1952740011
- Valerie Gilson, COTA/LOccupational Therapy Assistant1487828463
- Laura Koziatek, RPTPhysical Therapist1255506648
- Cynthia Lauria, PTAPhysical Therapy Assistant1558535468
- Hayley McGill, OTR/LOccupational Therapist1982117529
- Kimberly Stubbs, APRNGerontology Nurse Practitioner1700607793
Verify Monika U. Zagaja in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 54700Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
47 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- The Charlotte Hungerford HospitalTorrington, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Monika U. Zagaja among 2,623 internal medicine physician records in Connecticut
Monika U. Zagaja, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 70% of them.
- NPI issued2013 · 70% of these records are older, 28% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2013 · median 2004 among the 1,646 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Connecticut
There are 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Waterford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Candi McCulloch, MDWaterford, CT 063851295099372
- Benjamin Newton, M.D.Waterford, CT 063851265520191
- Peggy Fujimura, MDUncasville, CT 063821588754188
- Peter Hahn, M.D.Uncasville, CT 063821184690703
- Louis Iovino, D.O.Pawcatuck, CT 063791396825097
- Job Sandoval, MDPawcatuck, CT 063791790815157
- David Burchenal, MDStonington, CT 063781922050632
- Wagdy Habashy, MDPlainfield, CT 063741508875451
Common questions
What is Monika U. Zagaja, M.D.'s NPI number?
Monika U. Zagaja, M.D.'s National Provider Identifier (NPI) is 1942542337, issued on Mar 23, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Monika U. Zagaja, M.D. located?
The NPPES record lists a practice address at 4 Greentree Dr, Waterford, CT, 06385. Phone: (860) 442-0647. Providers update this record themselves, so call before visiting.
How can I verify Monika U. Zagaja, M.D.'s license?
NPPES lists Connecticut license number 54700, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Monika U. Zagaja, M.D. prescribe under Medicare Part D?
In 2024, Monika U. Zagaja, M.D. had 47 Medicare Part D claims for 17 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.